I have 3 Kawaii Heavy Wetters OS, these are in really used condition. For me, they leak. I dont know if maybe you strip them or try changing up inserts they will work for you. They do not come with inserts. Just pay for shipping and theyre yours.

The blue stripes is a sunbaby OS, (before size 1/2). Its got normal piling and does have a small hole. Pictured below. Pay for shipping and its yours.